<?php

class SSH
{
  public string $HostName;
  public string $UserName;
  public string $Password;
  public array $Methods;

  function __construct($HostName = 'localhost', $UserName = 'admin', $Password = '')
  {
    $this->HostName = $HostName;
    $this->UserName = $UserName;
    $this->Password = $Password;
    $this->Methods = array();
  }

  function Execute(array $Commands): array
  {
    echo($Commands);
    if (!function_exists("ssh2_connect")) die("Function ssh2_connect doesn't exist");
    if (!($this->Session = ssh2_connect($this->HostName, 22, $this->Methods))) echo("Fail: Unable to establish connection to host\n");
    else
    {
      if (!ssh2_auth_password($this->Session, $this->UserName, $this->Password)) echo("Fail: unable to authenticate\n");
      else
      {
        //if (!($Stream = ssh2_shell($this->Session, 'xterm', null, 80, 40, SSH2_TERM_UNIT_CHARS))) echo("Fail: unable to execute command\n");
        if (!($Stream = ssh2_exec($this->Session, $Commands))) echo("Fail: unable to execute command\n");
        else
        {
          $Response = '';
          stream_set_blocking($Stream, true);
          while ($Buffer = fread($Stream, 4000))
          {
            $Response .= $Buffer;
          }
            /*
            //echo(') '.strlen($Buffer).' '.ord($Buffer[0]).'(');
            for ($I = 0; $I < strlen($Buffer); $I++)
            {
              if (((ord($Buffer[$I]) >= 32) and (ord($Buffer[$I]) <= 128)) or ($Buffer[$I] = "\n") or ($Buffer[$I] = "\r")) echo($Buffer[$I]);
              if ($Buffer[$I] == '>')
              {
                fwrite($Stream, $Commands."\n\r");
                sleep(1);
              }
            }
            $Response .= $Buffer;
          }
          */
          fclose($Stream);
        }
      }
    }
    echo($Response);
    return explode("\n", substr($Response, 0, -1));
  }
}