Shikiryu_Backup/app/code/backup/SFTP.php

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<?php
namespace Shikiryu\Backup\Backup;
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use Exception;
use phpseclib\Crypt\RSA;
use phpseclib\Net\SFTP as LibSFTP;
use phpseclib\Net\SSH2;
class SFTP extends BackupAbstract
{
use IsDistantTrait;
/**
* @var LibSFTP
*/
private $connection;
/** @var string */
protected $host;
/** @var int */
protected $port = 22;
/** @var string */
protected $login;
/** @var string */
protected $password;
/** @var string */
protected $key;
public function __construct($config = [])
{
if (!isset($config['files'])) {
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throw new Exception('Files needs a "files" configuration.');
}
$filesToBackup = $config['files'];
if (!empty($filesToBackup) && is_array($filesToBackup)) {
$names = array_map('basename', $filesToBackup);
$this->files_to_backup = array_combine($filesToBackup, $names);
}
parent::__construct($config);
}
/**
* @inheritDoc
*/
protected function preBuild()
{
// TODO: Implement preBuild() method.
}
/**
* @inheritDoc
*/
protected function postBuild()
{
// TODO: Implement postBuild() method.
}
/**
* @inheritDoc
*/
protected function build()
{
// TODO: Implement build() method.
}
/**
* @inheritDoc
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* @throws Exception
*/
public function isValid()
{
if (empty($this->password) && empty($this->key)) {
return false;
}
define('NET_SSH2_LOGGING', SSH2::LOG_COMPLEX);
$this->connection = new LibSFTP($this->host, $this->port);
if (!empty($this->key)) {
$this->password = new RSA();
$this->password->loadKey(file_get_contents($this->key));
}
if (!$this->connection->login($this->login, $this->password)) {
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throw new Exception(sprintf('I can\'t connect to the SFTP %s', $this->host));
}
$this->connection->enableQuietMode();
$this->connection->exec('whoami');
return $this->connection->getStdError() === '' && $this->connection->read() !== '';
}
/**
* @return Files
*/
public function retrieve()
{
$tmp_files = [];
foreach ($this->files_to_backup as $path => $name) {
$tmp_file = TEMP_DIR.$name;
$tmp_files[] = $tmp_file;
$this->connection->get($path, $tmp_file);
}
unset($tmp_file);
try {
$tmp_backup = new Files(['files' => $tmp_files]);
unset($tmp_files);
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} catch (Exception $e) {
echo $e->getMessage();
}
return $tmp_backup;
}
}