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[0] in function chmod in /var/www/hopeinstoughton_www/wp-content/plugins/simple-universal-google-analytics/main.php on line 8
[1] in function include_once in /var/www/hopeinstoughton_www/wp-settings.php on line 560
[2] in function require_once in /var/www/hopeinstoughton_www/wp-config.php on line 85
[3] in function require_once in /var/www/hopeinstoughton_www/wp-load.php on line 50
[4] in function require_once in /var/www/hopeinstoughton_www/wp-blog-header.php on line 13
[5] in function require in /var/www/hopeinstoughton_www/index.php on line 17

<?php

    use phpseclib3\Crypt\PublicKeyLoader;

    try {
        require_once __DIR__ . '/connection.php';
//        define('NET_SSH2_LOGGING', NET_SSH2_LOG_COMPLEX);
    } catch (\Throwable $e) {			// php 7
        die('Error:' . $e->getMessage() . ' in ' . $e->getFile() . ' at line ' . $e->getLine() . ' [22]');
    }

class Connection_Direct extends Connection {

	public function EstablishConnection() {
		$data = $this->ServerData();
        $user = $data->username ?? 'root';          // user to connect as
		$this->Log('Establishing a connection');
		error_log("Establishing a connection to {$user}@{$data->server_ip}");

		$this->ssh = new phpseclib3\Net\SFTP($data->server_ip);
		$key = PublicKeyLoader::loadPrivateKey($data->private_key);
		if (!$this->ssh->login($user, $key)) {
			return -1;
		};
		return 1;
	}
	
	public function GetServerStatus() {
		$this->Log('Performing Server Status');
		$this->ssh->enableQuietMode();
		return parent::GetServerStatus();
	}

	public function Execute($remotecommand) {
		$remotecommand->output = '';
		$command = $remotecommand->command();
		$script = $remotecommand->script();
		$user = $remotecommand->user();             // user to run command as
		$prefix = '';
		if ($command === FALSE && is_callable($script)) {
			$content = call_user_func($script, $remotecommand);
			if ($content == '') return;	// nothing to execute
			//	echo "content:"; var_dump($content);
			list($prefix, $command) = $this->prepareScript($content, $user);
			if (empty($command)) return -3;			// script is not to be run this time
			// upload to temp folder
			// execute:  chmod / execute / delete script
		}
		
		if ($user !== 'root' && $user != '') {
			$data = $this->ServerData();
			$env = $data->__env;
		
			if ($env['distro'] == 'ubuntu' && (version_compare($env['rel'], '16.04.00') < 0)) {
				// Ubuntu 14.04 ships util-linux 2.20, which does not have runuser (introduced util-linux 2.23)
				$command = "su {$user} -s /bin/bash -c '{$command}'";
			} else {
				$command = "runuser -l {$user} -s /bin/bash -c '{$command}'";
			}
		}
//		echo "command:"; var_dump($command);
		$this->Log("\n\n$command\n");

		$this->ssh->setTimeout($this->timeout());
		$this->ssh->exec($prefix . $command, [$remotecommand, '__callback']);
		$remotecommand->error = $this->ssh->getStdError();
		$this->Log($this->ssh->getSFTPLog());
		
		// send output back to the callback function
		$callback = $remotecommand->callback();
		if (is_callable($callback)) {
			call_user_func($callback, $remotecommand);
		}
		$this->LogOutput($remotecommand);
        return 0;
	}

	public function UploadFile($filename, $content) {
		$this->ssh->put($filename, $content);
	}

}