php code for sshpass and ssh2

Question

I'm new in PHP coding I'm writing new simple script but when i put this code i get blank page can some one tell me what's wrong with this code ?

<?php
if($_POST) {
$host = $_POST['host'];
if (!function_exists("ssh2_connect")) die("function ssh2_connect doesn't exist");
if(!($con = ssh2_connect("127.0.0.1", "22")))
{
    echo "fail: unable to establish connection";
}
else
{
    if(!ssh2_auth_password($con, "root", "password"))
    {
        echo "fail: unable to authenticate ";
    }
    else
    {

        $stream = ssh2_exec($con, "".$host."");
            stream_set_blocking($stream, true);
        $item = "";
        while ($input = fread($stream,4096)) {
               $item .= $input;
        }
        echo $item;
    }
}

?>

sorry for my bad EN

done any basic debugging, like enabling display_errors/error_reporting? — Marc B
– Marc B, Commented Feb 2, 2015 at 20:35
white page of death, error reporting\display are off, turn them on error_reporting(E_ALL); ini_set('display_errors', 1); — user557846
– user557846, Commented Feb 2, 2015 at 20:39
@Cyclone yes you are right it's work now thank you all for helping me — codezero
– codezero, Commented Feb 2, 2015 at 20:42

aqadiemond · Accepted Answer · 2015-02-03 17:10:24Z

2

You might have better luck with phpseclib, a pure PHP SSH2 implementation. eg.

<?php
include('Net/SSH2.php');

$ssh = new Net_SSH2('www.domain.tld');
if (!$ssh->login('username', 'password')) {
    exit('Login Failed');
}

echo $ssh->exec('pwd');
echo $ssh->exec('ls -la');
?>

If you want to let the command run for a certain amount of time before getting the output you can do $ssh->setTimeout(1). So you could do ping 127.0.0.1 on Linux, which won't stop, but still phpseclib would stop after one minute.

answered Feb 3, 2015 at 17:10

aqadiemond

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Comments

JerzySkalski · Accepted Answer · 2015-02-02 20:50:49Z

0

I worked few days to make ssh2 work in PHP [dedicated server admin panel on www], but I did not find any solution for problem with output. Only thing that works (but this is good enough only for some scripts) is to sleep some time between 'exec' and 'read':

$stream = ssh2_exec($connection->conn, 'pgrep screen');
stream_set_blocking($stream, true);
// sleep 0.5 sec, this trick won't work for commands that execution time is unpredictable
usleep(500000);
$line = '';
while($get = fgets($stream))
{
    $line .= $get;
}
echo $line;

answered Feb 2, 2015 at 20:50

JerzySkalski

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Comments

Christoph · Accepted Answer · 2016-11-30 01:49:41Z

0

Maybe its not the OP's question, but the title states php sshpass ssh, worth adding a simple php example using sshpass and ssh with exec().

$ssh_host = "127.0.0.1";
$ssh_port = "22";
$ssh_user = "root";
$ssh_pass = "password";
$command = "uname -a";
$connection = "/usr/bin/sshpass -p $ssh_pass /usr/bin/ssh -p $ssh_port -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null $ssh_user@$ssh_host";
$output = exec($connection." ".$command." 2>&1");
echo "Output: $output";

answered Nov 30, 2016 at 1:49

Christoph

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